Digital system for generating laser-modulation multi-channel cir

Details Digital system for generating laser-modulation multi-channel cir Digital system for generating laser-modulation multi-channel cir

1988-03-18

1990-06-05

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358104, H04N 574

Patent

active

049318748

ABSTRACT:
To compensate for the non-linearity of the oscillations of the line galvanometer of a scanned image projector with oscillating mirrors, compensation circuits are used. These compensation circuits act on the video signal by modulating the duration of the pixels of the digitized video signal and their position in the period of the line, in a manner that is inversely proportionate to the instantaneous speed of the galvanometer. The system can be applied to fighter aircraft simulators.

REFERENCES:
patent: 4654713 (1987-03-01), Zimmerman
patent: 4769712 (1988-09-01), Polaert
patent: 4799103 (1989-01-01), Muckerheide
Patent Abstracts of Japan, vol. 9, No. 44 (P-337) (1767), Feb. 23, 1985; & JP-A-59 182 417 (Hitachi Medeiko K.K.), Oct. 17, 1984, *Resume.*

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